This application provides a
flue gas particulate matter sampling
system, comprising a sampling head, a first sampling bend, a sampling straight
pipe, a first connecting
pipe, a second sampling bend, and a second connecting
pipe sequentially connected to an automatic sampler. The first sampling bend includes a first bend body, one end of which is connected to the sampling head, and the other end of which is connected to one end of the sampling straight pipe. The second sampling bend includes a second bend body, a filter membrane, and a
gasket, one end of which is connected to the other end of the first connecting pipe. The other end of the second bend body, the filter membrane, and the
gasket are sequentially arranged, with a sealing ring located at the edge of the other end of the second bend body, the filter membrane, and the
gasket. The sealing ring securely connects the other end of the second bend body, the filter membrane, and the gasket. This application, by placing a sampling straight pipe and a first connecting pipe between the first and second sampling bends, reduces the risk of melting of the second sampling bend due to excessively high
flue gas particulate matter temperatures, thus protecting the second sampling bend.